Relationship
Sets the tangent option you want. The option you set determines what types of elements are available.
Tangent—Specifies that you want two elements tangent. The first element you select can be linear or nonlinear.
Tangent + Equal Curvature—Specifies that you want two elements tangent and with an equal radius of curvature. The first element you select must be a curve, ellipse or partial ellipse. The elements can be 2D or 3D.
Parallel Tangent Vectors—Specifies that you want the tangent vectors for the two elements to be parallel. The first element you select must be a curve, ellipse or partial ellipse. The elements can be 2D or 3D.
Parallel Tangent Vectors + Equal Curvature—Specifies that you want the tangent vectors for the two elements to be parallel and with an equal radius of curvature. The first element you select must be a curve, ellipse or partial ellipse. The elements can be 2D or 3D.